What is the standard for claiming headlight fogging?

[StGavin]

For headlight water ingress without external factors, free replacement is available within the warranty period. Below is relevant information about automotive headlights: 1. Incandescent lamps: The bold vision of a physics professor occurred in 1802 at the St. Petersburg Medical-Surgical Academy in Russia, where a physics professor named Petrov announced his intention to "obtain light from electricity." In the early 19th century, when bonfires, torches, animal and vegetable oils, and gas were still the primary lighting methods, and electricity was still a novelty, this decision was nothing short of a fantasy. 2. Arc lamps and incandescent lamps: Around the same time, in 1809, the famous British chemist Davy, who was immersed in electrochemical research, also discovered the electric arc. He personally built a large capacitor, used 2000 voltaic batteries, and obtained a more intense and brighter arc light.

[LeilaFitz]

I've driven quite a few cars, and headlight fogging claims are actually quite common. Manufacturer standards usually depend on the warranty period and the severity of the fogging. If the car is newly purchased within the first year or two, and the fogging is severe—like persistent water accumulation inside—it might be due to seal aging or assembly defects, and you can get the headlights replaced for free at the dealership. However, minor fogging is normal, such as a bit of condensation after parking in the rain or washing the car, and it's not a big deal. When filing a claim, make sure there are no signs of human damage. I once successfully helped a friend with a claim, but the dealer tried to blame environmental factors. You have to insist and take photos to prove it doesn’t obstruct visibility. After the warranty expires, repairs will cost you, so remember to regularly check the edges of the headlight covers to avoid damage—otherwise, it's all for nothing. If the lights aren’t working properly, get them fixed as soon as possible—safety first.

[LaKaleb]

As a new driver, I was also panicked when I first encountered foggy headlights. Simply put, the claim standard is that abnormal fogging must occur within the warranty period. The car manual states that within the first two years or a certain mileage, if the headlight cover is permanently covered with water droplets and obstructs visibility, the manufacturer is responsible for repair or replacement. Last time, after cleaning, I noticed fog that wouldn't dissipate all day, and the staff checked and handled it for free, but minor dew droplets don't count as a fault. Warranty claims are often denied due to modifications to the lights or collisions. Parking away from rain and dust accumulation can help prevent it. Don't wait too long if the fogging worsens—it becomes more troublesome. Quickly seek an evaluation at an authorized shop to save time and hassle.

[StCayden]

I've been into DIY car repairs for years. The prerequisite for claiming foggy headlights is no external damage to the lamp body. Try drying it and leaving it in direct sunlight for a day. If fog still forms, it indicates seal failure, which is claimable under warranty. Criteria include intact lens covers and water droplets persisting over 24 hours. Manufacturers like Volkswagen or Geely typically offer 1-3 years coverage. I once got rejected because I'd tampered with the screws - recommend video evidence before visiting the dealership. Out of warranty, just buy replacement parts - no need to stress over minor issues.